Technology

unusable in city, highly situational outside. very annoying when someone merges just in front of you.

I agree with this, which is why I find myself mostly using it on long stretches of highway.

sooner or later it will stop working, because it will have trouble reading the lines. people are terrible at monitoring automatic system, that is the lesson we learned from airline cockpits, and i will rather drive my car, than anxiously wait for the moment what the half-assed system stops working. on top of that, my car start obnoxious alarm once it decides i am not holding the steering wheel tight enough, which is about 20 seconds after activation of this function.

Maybe I'm missing something here, but at least on my car, lane keep assist only corrects you when you're drifting out of the lane. The system that keeps you centered in the lane is called "active lane keep" which is only enabled for me when I also have cruise control turned on.

I rarely use active lane keep, but when I do, it's on a mostly empty highway. Also, I'm not the kind of driver who does shit while driving, so it's quick at least for me to correct it if it's wrong (and it occasionally is).

ehm, are you using your turn indicators?

When another lane merges into mine? No. The car still has no idea where my lane is though because the line on my right (for the US - I assume left in the UK?) disappears for a short time.

(i admittedly don't have personal experience with such system)

Maybe some experience would do some good then? All it shows me is a number for my speed, a speed limit sign, and sometimes it'll pick up school zones or no passing zones. It's tiny and at the very periphery of my vision.